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HSChapter 40
U.S. imports of hard rubber (ebonite) — all forms & articles (HS 401700) totaled $1.9M in April 2026, traded with 36 countries.
Importers of Hard Rubber (Ebonite) — All Forms & Articles paid $162K in duties in April 2026 — an effective duty rate of 16% on $1.0M in dutiable value, based on actual customs collections rather than the published tariff schedule. Hard Rubber (Ebonite) — All Forms & Articles imports of $1.9M in April 2026 ran 10% below the year-to-date monthly average of $2.1M.
Last updated: April 2026 dataHard rubber, commercially known as ebonite or vulcanite, is distinguished from soft vulcanized rubber by its high sulfur content and rigid, thermoset structure, making it suitable for electrical insulators, bowling balls, chemical-resistant linings, and specialty industrial components. The heading covers hard rubber in all forms — including waste and scrap — as well as finished articles, all under a single US tariff line (4017000000). Canada leads US imports, followed by China. Because hard rubber is a purely industrial material with no food, drug, or biological application, no mandatory admissibility review applies at the border.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Hard rubber is defined by a sulfur content typically exceeding 32% by weight combined with the rubber, producing a rigid, non-elastic thermoset material. Soft vulcanized rubber contains far less sulfur and retains elasticity. When composition data is unavailable, hardness testing (Shore D scale) and the article's lack of elastic recovery under deformation are practical indicators. CBP may request a chemical analysis certificate if the classification is disputed.
Yes — heading 401700 explicitly covers hard rubber in all forms, including waste and scrap, as well as finished articles, all under the single US line 4017000000. This contrasts with soft vulcanized rubber, where waste and scrap have their own heading (4004). Importers dealing in hard rubber scrap for recycling or reprocessing should confirm that the material meets the chemical definition of hard rubber to avoid misclassification into the soft-rubber scrap heading.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 4017000000 | HARD RUB IN ALL FORMS; ARTICLES OF HARD RUBBER | $1.9M | 15.98% | $162K |
HARD RUB IN ALL FORMS; ARTICLES OF HARD RUBBER
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 4017000000 | HARD RUB IN ALL FORMS; ARTICLES OF HARD RUBBER | $442K |
HARD RUB IN ALL FORMS; ARTICLES OF HARD RUBBER
20.1K kg
NEW PNEUMATIC TIRES OF RUBBER, FOR MOTOR CARS
HS 401110
NEW PNEUMATIC TIRES OF RUBBER, FOR BUSES OR TRUCKS
HS 401120
GASKET, WASHERS & OTHER SEALS, OF VULCANIZED RUB
HS 401693
ARTICLES OF SOFT VULCANIZED RUBBER NESOI
HS 401699
MEDICAL/SURGICAL/DENTAL/VET GLOVES, MITTENS, MITTS
HS 401512
NEW PNEUMATIC TIRES OF RUBBER, NESOI
HS 401190
| State | Imports | Exports | Balance |
|---|---|---|---|
| Texas | $240K | $20K | -$221K |
| Ohio | $207K | $44K | -$163K |
| North Carolina | $248K | -- | -$248K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| BUFFALO-NIAGARA FALLS, NY | $447K | $9K | -$438K |
| DETROIT, MI | $185K | $90K | -$95K |
| CHARLESTON, SC | $263K | -- | -$263K |